7
Flexibility of VIRUS design VIRUS design is readily adaptable to other fiber-fed spectrograph systems –Easy to change resolution, wavelength range, etc. with simple redesigns Has already been used as basis of new spectrograph design –LRS2, a moderate resolution red-optimized spectrograph for HET

13
Work required to design DESpec as VIRUS clone We would need about 2 years of engineering effort for redesign A&M could assemble and test spectrographs in ~2 years –Lots of experience from VIRUS! These are estimates; will require more careful schedule/planning

15
Summary VIRUS design could be easily and relatively cheaply adapted to DESpec spectrographs –Two-arm re-design is more involved but possible Would need ~10 spectrographs 3-4 years of effort in redesign and assembly